Patent classifications
G09G3/2025
Systems and method for improving operating characteristics of displays
Systems and methods for improving operating characteristics of displays such as liquid crystal on silicon displays.
System, apparatus and method for displaying image data
The present invention provides a display system for displaying image data. The display system comprises a light source; a spatial light modulator including a plurality of controllable reflective elements; a light source controller, configured to control the light source to emit, in each of a plurality of time intervals, light with a different illumination power level, wherein the time intervals have the same length; and a spatial light modulator controller, configured to activate, based on received image data, the plurality of controllable elements for at least one of the time intervals for directing the light from the light source for display the image data. Accordingly, the frame rate and bandwidth of the display system are increased significantly so as to be suitable for the light filed applications.
LED DRIVING CIRCUIT AND METHOD
A LED driving circuit comprises a high bit driving circuit, a low bit driving circuit and a driving output terminal. The high bit driving circuit coupled to a high bit signal of the grayscale signal determines a first current continuously driven during a grayscale period according to the value of the high bit signal. The first current is invariant during the grayscale period. The low bit driving circuit coupled to a low bit signal of the grayscale signal determines a second current driven in at least two time intervals during the grayscale period according to the value of the low bit signal. The driving output terminal coupled to the high bit driving circuit and the low bit driving circuit outputs the driving current added by the first current and the second current. Accordingly, the LED display can be improved with higher refresh rate and/or better uniformity in low grayscale.
Liquid crystal display apparatus and method providing backlight control for sub-frames with identical image contents
A liquid crystal display apparatus includes the following elements. A liquid crystal display panel section includes a liquid crystal display panel. A backlight section, placed on the rear of the liquid crystal display panel away from an image display surface, extends from end to end of the liquid crystal display panel in the horizontal scanning direction and includes a plurality of blocks arranged in the vertical scanning direction. A circuit section performs control in the first one of a plurality of sub-frames having the same contents displayed on the liquid crystal display panel so that a block irradiating a portion, where an image segment is being updated, in the liquid crystal display panel is turned off, and performs control in another sub-frame other than the first sub-frame so that the block irradiating the portion, where the image segment is being updated, in the liquid crystal display panel is turned on.
DISPLAY DEVICE AND METHOD
The present invention provides a display device, which comprises a display panel, a partitioning module, a data transforming module, a scanning driver, and a data driver. The display panel has M pixel units. The partitioning module partitions the M pixel units into N pixel-unit groups and generates at least one partitioning signal. The data transforming module receives at least one original image data of the M pixel units and generates at least one data transforming signal. The data driver receives the at least one data transforming signal, and transfers the at least one data transforming signal to the M pixel units, to light up each of the N pixel-unit groups only for one frame of X frames of an image period. By randomly selecting pixel units to light up, the image flicker problem is solved.
DISPLAY DEVICE
Display device with of a plurality of pixels (P, P0101, P0102, P0103, P01Y, P0201, P0301, PX01) arranged in an array with rows and columns, a plurality of column lines (C1 . . . CY), each connected to the pixels of one of the columns, a plurality of row lines (L1 . . . LX), each connected to the pixels of one of the rows, a control unit (2) connected to the plurality of column lines and configured to generate a column pulse (CS1 . . . CSY) for a selected one of the plurality of column lines, and connected to the plurality of row lines and configured to generate a data signal (LP1 . . . LPX) for a selected row line from the plurality of row lines, wherein the data signal comprises a set pulse (SP) which, when the pixel is set to a radiating state, is applied at least in part to the pixel connected to the selected column and row line when the column pulse is applied to the pixel, and drives the pixel such that a light emission of the pixel depends on the time offset between the column pulse and the set pulse.
Image processing device and method for suppressing a reduction in image quality
There is provided an image processing device, an image projection device, a control device, an information processing device, an image projection system, an image processing method, and a program that make it possible to suppress a reduction in a subjective image quality. On the basis of each frame image of a moving image, a time during which a projection image of each frame image of the moving image is viewable by a user is controlled. For example, a controller controls the time during which the projection image is viewable by the user, to cause a difference between the moving image and the projection image due to a reduction in a luminance and a difference between the moving image and the projection image, which increases due to an increase in the time during which the projection image is viewable by the user, to be suppressed.
DISPLAY PANEL AND DRIVE METHOD THEREOF, AND DISPLAY DEVICE
A display panel and its drive method, and a display device are provided in the present disclosure. The method for driving the display panel includes refreshing a first-color picture N times in one frame. A time interval between every two adjacent refreshings of the N times of the refreshing is T1 for the first-color picture, T1=T2/N, T2 is a duration of the one frame, N>1, and N is a positive integer. The first-color picture may be refreshed multiple times in the one frame, and the multiple refreshing processes of the first-color picture may be evenly distributed, which may reduce each picture retention duration after the first-color picture is refreshed. Furthermore, before the human eyes are not able to recognize the brightness decrease of a previous first-color picture, a next first-color picture is refreshed, thereby effectively improving the picture flickering phenomenon of the display panel.
CIRCUIT DEVICE, ELECTRO-OPTICAL ELEMENT, AND ELECTRONIC APPARATUS
A circuit device includes a scan line drive circuit that drives a plurality of scan lines of an electro-optical element. A field for constituting one image includes a plurality of subfields. The scan line drive circuit selects once a scan line group to be selected among the plurality of scan lines, in a subfield included in the plurality of subfields. The scan line group includes a scan line connected to a pixel circuit to which an i-th bit is written in a subfield, and a scan line connected to a pixel circuit to which a j-th bit is written in a subfield.
Display device and driving method therefor
A display device, wherein a drive circuit thereof is used to display each frame of image by means of two sub-frames; and determining, according to an average drive voltage of sub-pixels of all colors, the magnitudes of backlight compensation signals respectively corresponding to the two sub-frames so as to adjust the light emission brightness of a light source.